cities = {'chengdu':{'country': 'china',
                     'population': '20900000',
                     'fact': '星期三限行3和8',
                     },
          'beijing':{'country': 'china',
                     'population': '21900000',
                     'fact': '中国首都',
                     },
          'wuhan':{'country': 'china',
                   'population': '12400000',
                   'fact': '疫情',
                   },
          }
for city,condition in cities.items():
    print("The "+city.title()+" is:")
    country = condition['country']
    population = condition['population']
    fact = condition['fact']
    print("The country of origin is:"+country.title()+".")
    print("The population is:"+population+".")
    print("The fact is:"+fact+".")
    print("\t")